Finding the Fourth Proportional to 1,123.33, 1,682.96 and 875.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.33 : 1,682.96 = 875.67 : x
2. Step 2: Convert to fraction form
   1,123.33/1,682.96 = 875.67/x
3. Step 3: Cross multiply
   1,123.33x = 1,682.96 × 875.67
4. Step 4: Simplify right side
   1,123.33x = 1,473,719.77
5. Step 5: Solve for x
   x = 1,473,719.77/1,123.33
6. Step 6: Final answer
   x = 1,311.92